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Compare · ALEC vs BIIB

ALEC vs BIIB

Side-by-side comparison of Alector Inc. (ALEC) and Biogen Inc. (BIIB): market cap, price performance, sector, and recent activity on the wire.

Summary

  • Both ALEC and BIIB operate in Biotechnology: Biological Products (No Diagnostic Substances) (Health Care), so they compete in similar markets.
  • BIIB is the larger of the two at $28.84B, about 158.9x ALEC ($181.5M).
  • Over the past year, ALEC is up 13.2% and BIIB is up 45.6% - BIIB leads by 32.4 points.
  • BIIB has been more active in the news (8 items in the past 4 weeks vs 4 for ALEC).
  • Both have 25 recent analyst ratings on file.
PerformanceALEC+13.19%BIIB+45.56%
2025-06-09+0.00%2026-06-05
MetricALECBIIB
Company
Alector Inc.
Biogen Inc.
Price
$1.63-9.70%
$195.30-0.61%
Market cap
$181.5M
$28.84B
1M return
-36.45%
+2.39%
1Y return
+13.19%
+45.56%
Industry
Biotechnology: Biological Products (No Diagnostic Substances)
Biotechnology: Biological Products (No Diagnostic Substances)
Exchange
NASDAQ
NASDAQ
IPO
2019
News (4w)
4
8
Recent ratings
25
25
ALEC

Alector Inc.

Alector, Inc., a clinical stage biopharmaceutical company, develops therapies for the treatment of neurodegeneration diseases. Its products include AL001, a humanized recombinant monoclonal antibody, which is in Phase III clinical trial for the treatment of frontotemporal dementia, Alzheimer's, Parkinson's, and amyotrophic lateral sclerosis diseases; and AL101 that is in Phase I clinical trial for the treatment of neurodegenerative diseases, including Alzheimer's and Parkinson's diseases. The company also offers AL002, a product candidate that is in Phase II clinical trial for the treatment of Alzheimer's disease; and AL003, which is in Phase Ib clinical trial for the treatment of Alzheimer's disease. In addition, its products in development stage include AL044 that targets MS4A4A, a risk gene for Alzheimer's disease; and 8 candidates in immuno-neurology/immuno-oncology field comprise ADP012, ADP016, ADP017, ADP023, ADP026, ADP122, ADP009, and ADP022. Alector, Inc. has a collaboration agreement with Adimab, LLC for the research and development of antibodies. The company was founded in 2013 and is headquartered in South San Francisco, California.

BIIB

Biogen Inc.

Biogen Inc. discovers, develops, manufactures, and delivers therapies for treating neurological and neurodegenerative diseases. The company offers TECFIDERA, VUMERITY, AVONEX, PLEGRIDY, TYSABRI, and FAMPYRA for multiple sclerosis (MS); SPINRAZA for spinal muscular atrophy; and FUMADERM to treat plaque psoriasis. It also provides BENEPALI, an etanercept biosimilar referencing ENBREL; IMRALDI, an adalimumab biosimilar referencing HUMIRA; and FLIXABI, an infliximab biosimilar referencing REMICADE. In addition, the company offers RITUXAN for treating non-Hodgkin's lymphoma, chronic lymphocytic leukemia (CLL), rheumatoid arthritis, two forms of ANCA-associated vasculitis, and pemphigus vulgaris; RITUXAN HYCELA for non-Hodgkin's lymphoma and CLL; GAZYVA to treat CLL and follicular lymphoma; and OCREVUS for treating relapsing MS and primary progressive MS; and other anti-CD20 therapies. Further, it develops BIIB061, BIIB091, and BIIB107 for MS and neuroimmunology; Aducanumab, BAN2401, BIIB092, BIIB076, and BIIB080 to treat Alzheimer's disease and dementia; BIIB067, BIIB078, BIIB105, BIIB100, and BIIB110 to treat neuromuscular disorders; BIIB124, BIIB094, BIIB118, BIIB101, and BIIB122 for treating Parkinson's disease and movement disorders; BIIB111 and BIIB112 to treat ophthalmology related diseases; BIIB125 and BIIB104 for treating neuropsychiatry; Dapirolizumab pegol and BIIB059 to treat immunology related diseases; BIIB093 and TMS-007 to treat acute neurology; BIIB074 and BIIB095 for neuropathic pain; and SB11 and SB15 biosimilars, which are under various stages of development. The company has collaboration and license agreements with Acorda Therapeutics, Inc.; Alkermes Pharma Ireland Limited; Bristol-Myers Squibb Company; Eisai Co., Ltd.; Genentech, Inc.; Neurimmune SubOne AG; Ionis Pharmaceuticals, Inc.; Ginkgo Bioworks; Capsigen Inc.; and Mirimus, Inc. Biogen Inc. was founded in 1978 and is headquartered in Cambridge, Massachusetts.

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